The reaction gamma p -> K+Lambda(1520) using photoproduction data from the CLAS g12 experiment at Jefferson Lab is studied. The decay of Lambda(1520) into two exclusive channels, Sigma(+)pi(-) and Sigma(-)pi(+), is studied from the detected K+, pi(+), and pi(-) particles. A good agreement is established for the Lambda(1520) differential cross sections with the previous CLAS measurements. The differential cross sections as a function of center-of-mass angle are extended to higher photon energies. Newly added are the differential cross sections as a function of invariant four-momentum transfer t, which is the natural variable to use for a theoretical model based on a Regge-exchange reaction mechanism. No new N* resonances decaying into the K+Lambda (1520) final state are found.

Shrestha, U., Chetry, T., Djalali, C., Hicks, K., Nam, S.i., Adhikari, K.p., et al. (2021). Differential cross sections for Λ(1520) using photoproduction at CLAS. PHYSICAL REVIEW C, 103(2), 1-14 [10.1103/PhysRevC.103.025206].

Differential cross sections for Λ(1520) using photoproduction at CLAS

D'Angelo A.;Lanza L.;Rizzo A.;
2021-02-24

Abstract

The reaction gamma p -> K+Lambda(1520) using photoproduction data from the CLAS g12 experiment at Jefferson Lab is studied. The decay of Lambda(1520) into two exclusive channels, Sigma(+)pi(-) and Sigma(-)pi(+), is studied from the detected K+, pi(+), and pi(-) particles. A good agreement is established for the Lambda(1520) differential cross sections with the previous CLAS measurements. The differential cross sections as a function of center-of-mass angle are extended to higher photon energies. Newly added are the differential cross sections as a function of invariant four-momentum transfer t, which is the natural variable to use for a theoretical model based on a Regge-exchange reaction mechanism. No new N* resonances decaying into the K+Lambda (1520) final state are found.
24-feb-2021
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
Con Impact Factor ISI
Physics
CLAS Collaboration
https://journals.aps.org/prc/pdf/10.1103/PhysRevC.103.025206
Shrestha, U., Chetry, T., Djalali, C., Hicks, K., Nam, S.i., Adhikari, K.p., et al. (2021). Differential cross sections for Λ(1520) using photoproduction at CLAS. PHYSICAL REVIEW C, 103(2), 1-14 [10.1103/PhysRevC.103.025206].
Shrestha, U; Chetry, T; Djalali, C; Hicks, K; Nam, Si; Adhikari, Kp; Adhikari, S; Amaryan, Mj; Angelini, G; Atac, H; Barion, L; Battaglieri, M; Bedlin...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/287751
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